Abstract:Objective?To investigate the application of transnasal gastroscopy in the diagnosis of nose and throat diseases. Methods?Retrospectively analyzed the nose and throat lesions founded in the process of transnasal gastroscopy. Result?69 cases of nose and throat lesions were found in 12586 cases of transnasal gastroscopy, and take the corresponding treatment. Conclusion?Transnasal gastroscopy can provide new means for clinical nose and throat disease, worthy of further promotion.